// Checks if Diagonal move is possible/not blocked
public bool IsDiagonalPathBlocked(Coords originCoords, Coords destinationCoords, LocationModel unitLocationModel)
{
CoordsCalculator coordsCalculator = new CoordsCalculator((FloatCoords)originCoords);
if (!coordsCalculator.GetNeighbours().Contains((FloatCoords)destinationCoords))
{
throw new ArgumentException("destinationCoords must be neighbouring originCoords");
}
//checks if coords are next to each other
if (coordsCalculator.GetNonDiagonalNeighbours().Contains((FloatCoords)destinationCoords))
{
return(false);
}
Coords commonNeighbour1 = new Coords
{
x = originCoords.x,
y = destinationCoords.y
};
Coords commonNeighbour2 = new Coords
{
x = destinationCoords.x,
y = originCoords.y
};
WorldCellController cell1 = worldController.GetCellFromCoords(commonNeighbour1);
WorldCellController cell2 = worldController.GetCellFromCoords(commonNeighbour2);
//Checks if both coords are blocked by an obstacle
return(cell1 != null && IsCellImpassable(cell1.worldCellModel, unitLocationModel) ||
cell2 != null && IsCellImpassable(cell2.worldCellModel, unitLocationModel));
}
// sets the weight-values of all the neighbours of a cell
private Dictionary <Coords, CellWeightValues> CalculateNeighboursWeights(Coords currentCell, Coords targetCoords, LocationModel unit)
{
CoordsCalculator coordsCalculator = new CoordsCalculator((FloatCoords)currentCell);
FloatCoords[] neighbours = new FloatCoords[8];
coordsCalculator.GetNeighbours().CopyTo(neighbours, 0);
return((from neighbour in neighbours
where worldController.GetCellFromCoords((Coords)neighbour) != null &&
!IsCellImpassable(worldController.GetCellFromCoords((Coords)neighbour).worldCellModel, unit)
let cellWeights = CalculateCellWeights((Coords)neighbour, unit.Coords, targetCoords)
select new KeyValuePair <Coords, CellWeightValues>((Coords)neighbour, cellWeights)).ToDictionary(pair => pair.Key, pair => pair.Value));
}